Recently one of my clients get a new (very cheap) P4VP-MX wich uses a VIA VT8235 Southbridge.
This machine is not detecting (identify) ATA disk under 5.3.
I have tested with 5.3-STABLE and 5.3-RELEASE, with 4.X it works.
I tried with different disks and with CDROM, but nothing works.
The same disk run on another machines (including a P4SP-MX wich uses SIS chipset) and 4.X run normaly.
I have do some code debug, and ata_getparam() get no return (no interrupt is generated - ata_interrupt() never run).
The workaround of PR/73706 not work for me (my secondary ATA also fail) and break another machine on tests.
I'm playing with interrupt routing, but i cant get it working.
Also tried with dma, acpi, pci.enable_io_modes and apic disabled.
There is no error on dmesg until ATA_IDENTIFY timed out.
Any ideas / workaround ?
Please try the ATA-mkIII patches+tarfile I announced last week on -current and -stable..
--
-Søren
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